Date: Tue, 01 Mar 2005 15:19:42 -0800 From: Nate Lawson <nate@root.org> To: filippo.forti@fastwebnet.it Cc: freebsd-current@freebsd.org Subject: Re: Panic on suspend Message-ID: <4224F88E.8080205@root.org> In-Reply-To: <20050301203732.GB684@portatile.fastwebnet.it> References: <20050301203005.GA684@portatile.fastwebnet.it> <20050301203732.GB684@portatile.fastwebnet.it>
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Filippo Forti wrote:
> I got a fully reproduceable panic while trying to suspend (to S3) on my laptop.
> FreeBSD is -CURRENT from Monday.
>
> I'm using a modified DSDT which used to work before I updated on Monday.
> dmesg from after reboot is attacched.
>
> Here comes gbd output
>
> Fatal trap 12: page fault while in vm86 mode
> fault virtual address = 0x2000
> fault code = user write, page not present
> instruction pointer = 0xc000:0x5195
^^^^^^^
That is in the VGA BIOS. Try setting this sysctl before suspending:
hw.acpi.reset_video=0
> stack pointer = 0x0:0xfe4
> frame pointer = 0x0:0x0
> code segment = base 0x600005, limit 0x2, type 0x11
> = DPL 1, pres 0, def32 0, gran 0
> processor eflag = interrupt enabled, resume, mv86, IOPL = 0
> current process = 1046 (acpiconf)
> [thread pid 1046 tid 100084]
> Stopped at 0x5159: *** error reading from address 5159 ***
Ian committed code to restore the VESA state so we shouldn't reset video
redundantly. I'm thinking of changing the default to 0 in -current.
--
Nate
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